The older version of the PPTX file is PPT, which was used in Microsoft PowerPoint 97 through 2003. Note: Microsoft PowerPoint's PPSX format is similar to PPTX except that it will open directly to the presentation while PPTX files open to the editor mode.
Atherosclerosis is a disease in which plaque builds up inside your arteries. Arteries are blood vessels that carry oxygen-rich blood to your heart and other parts of your body. Plaque is made up of fat, cholesterol, calcium, and other substances found in the blood. Over time, plaque hardens and narrows your arteries.
Atherosclerosis is the medical term for the accumulation of fatty  deposits in the blood vessels. Atherosclerosis can lead to heart  attacks and strokes if not treated propeâ¦rly because the vessels  narrow and restrict the blood flow. Scootwhoman.